THANKS TO THE PUBLISHING team at Marsilio, especially to Marco Di Marco and Jacopo De Michelis, not only for the great professionalism they put into their work but also for their exceptional passion. Also to Filiberto Zovico and Chiara De Stefani for guiding me safely along roads not well known to me.
And thanks to my three readers who, during the course of my writing, were patient and full of good advice: my wife Milena and my two great friends Valeria and Fabrizio.